TM-3-1040-279-12-P
GENERATOR SET, SMOKE, MECHANICAL: PULSE JET, M157 W/120 GAL FOG OIL TANK AND W/80 GAL FOG OIL TANK
TECHNICAL MANUAL; OPERATOR’S AND ORGANIZATIONAL MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST AND DEPOT MAINTENANCE REPAIR PARTS
MAY 1987
TM-3-1040-279-12-P - Page 18 of 389
TM 3-1040-279-12&P
Section II. EQUIPMENT DESCRIPTION
1-7 EQUIPMENT CHARACTERISTICS,
CAPABILITIES, AND FEATURES.
a. Characteristics.
(1) Uses a pulse jet engine to vaporize and
release fog oil into the air where it cools to form
an oil vapor cloud.
(2) Easy to start and operate.
(3) Engine is started and operated from
inside vehicle.
b. Capabilities and Features.
(1) Can be used on the move or in static
locations.
(2) It can produce large area smoke screens.
(3) Able to operate in up to 40 mile-per-hour
winds.
(4) System can operate at any angle up to
45 degrees.
1-8 LOCATION AND DESCRIPTION OF
MAJOR COMPONENTS.
Control Panel Assembly.
Provides
separate switches, controls, and indicators for
operating and monitoring each smoke generator
assembly, the fog oil pump, and the air
compressor.
M54 Smoke Generator Assembly.
Gasoline-operated, pulse jet engine with an
equipment container and cover assembly. Cover
assembly contains the fuel pump and also serves
as a system connecting point for cable and hoses.
Fog Oil Tank.
Two sizes are provided A
120-gallon tank for the M1059 mechanized
system and an 80-gallon tank for the M1037/
M1097 HMMWV. Sight glasses on each tank
allow the fluid level to be checked quickly and
easily. The fog oil tank also serves as the mount
for the fog oil pump assembly.
Air Compressor Assembly.
Uses a
pressure tank to store the compressed air needed
for starting and purging the pulse jet engine. A
pressure switch mounted on the air compressor
assembly monitors the pressure in the tank.
When the required pressure is reached, the
switch opens and removes power from the air
compressor.
Fog Oil Pump Assembly.
Contains two dc
in-line fog oil pumps. Fog oil is drawn from the fog
oil tank and flows through two strainers. Two
pressure relief valves protect against excessive
fog oil pressure by returning excess fog oil to the
fog oil tank before it flows to smoke generator.
Fuel Filter/Water Separator Assembly.
A
fuel filter/water separator assembly mounted on
the fog oil tank or armor shield prevents the flow
of contaminated fuel to the M54 smoke generator.
1-2
Change 4
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